Heating device



United States Patent HEATING DEVICE Andrew Hallum, Springfield, M0.

Application June 19, 1957, Serial No. 666,576

3 Claims. (Cl. 67-21) growth of the plants will be aided or stimulated.

Another object of the invention is to provide a heating device for use in protecting small plants, seeds and the like from adverse weather conditions such as cold weather, and wherein the heater of the present invention includes a container that is adapted to hold a suitable quantity of fuel such as wax, the container including a plurality of tubes which extend inwardly into the mass or body of fuel in the container.

A further object of the invention is to provide a heater which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same.

Figure 1 is a top plan view of the heater of the present invention.

Figure 2 is a sectional view taken on the line 2-2 of Figure l, the views in Figures 1 and 2 showing the container without the fuel therein.

Figure 3 is a sectional view taken on the line 3-3 of Figure l and showing the fuel such as the wax in the container.

Figure 4 is a top plan view of the heater, with parts broken away and in section.

Referring in detail to the drawings, the numeral indicates a container which includes a cylindrical side wall 11 that is vertically disposed, and the container 10 further includes a horizontally disposed bottom wall 12 of circular formation. The upper end of the container 10 is open, as for example as shown in Figures 2 and 3.

There is further provided a plurality of spaced apart tubes 13, and the ends of the tubes 13 are open. .The tubes 13 are arranged in slanting fashion so that the inner ends of the tubes 13 are lower than the outer ends thereof. The outer ends of the tubes 13 register with openings or apertures 14 which are arranged in the wall 11 of the container 10.

Arranged in the container 10 is a mass or body of fuel 15 which may be wax, and mounted on the bottom wall 12 is a support member 16. A wick 17 extends upwardly from the support member 16, and the wick 17 extends through the fuel or wax 15. A coil spring 18 is circumposed on the wick 17, and the coil spring 18 extends longitudinally through the container 10 as shown in Fig. 3 for example.

From the foregoing, it is apparent that there has been provided a heating device which is especially suitable for use in aiding or promoting the growth of small plants, seedlings, or the like. The parts can be made of any suit- 2,859,604 Patented Nov. 1 1, 1958 able material and in different shapes or sizes. The heater of the present invention includes the container 10 which has the cylindrical outer wall 11 and the circular bottom wall 12, and extending inwardly from the wall 11 are a plurality of tubes 13. The tubes 13 are arranged so that the inner ends thereof are lower than the outer ends thereof, and the tubes 13 serve to supply air to the wax 15 whereby air for supporting combustion is uniformly distributed through the fuel 15. The wick 17 has its lower end arranged in engagement with the support member 16, and the coil spring 18 surrounds the wick 17, as for example as shown in Fig. 3. Thus, by igniting the wick 17, heat can be provided whereby such heat can beused for any desired purpose such as for protecting'small plants, or the like during frost, cold weather or the like, whereby damage to the plants will be prevented.

As previously stated, the heating candle or heating device of the present invention is closed at the bottom and open at the top. The fuel 15 may consist of wax, and the tubes 13 are used for supplying air for supporting combustion after the fuel 15 has burned down below the top of the container. The tubes 13 are slanted downwardly towards the center of the container in order to prevent the melted wax or fuel from running out of the tubes and these tubes will also help to melt the wax and cause it to run to the center since the tubes 13 can be made of a material which is a good conductor of heat. The number of tubes 13 can be varied as desired, and these tubes may be arranged in staggered formation so that there will be a continuous melting of wax and a supply of air from all sides. The heating device is cheap to make and the fire will burn for a long period of time without requiring any attention, so that the device is cheap to operate. It can be used in different localities for different purposes, as for example, it can be used under melon hills to give the seeds or plants an early start, and it can also be used under hot beds and as foot warmers. The coil spring 18 serves to hold the wick 17 on the inside in order to prevent the upper end of the wick from tilting over and causing the fire to become extinguished or else causing too big a fire. The spring 18 is held in upright position by means of the metal support member 16 and the support member 16 also serves to hold down the lower end of the wick 17 as for example while the heating material such as paraffin, tallow or the like are poured into the container.

The heater can be made in small or large sizes so that it can be used for many ditferent purposes such as heating a melon hill, or for preventing frost in an orchard and wherein a clean heat or a heat mixed with smoke and vapor can be produced in order to prevent damage by frost.

While I have shown a preferred form of my invention, I reserve all rights to such modifications as properly fall within the scope of the invention as claimed.

I claim:

1. In a heating device, a hollow container including a vertically disposed cylindrical side wall, and a horizontally disposed circular bottom wall, the upper end of said container being open, a quantity of fuel positioned in said container, and a plurality of spaced apart open ended tubes extending inwardly from said side wall, said fuel being wax, there being openings in said side wall registering with the outer ends of said tubes, said tubes being arranged in slanting fashion so that the inner ends of the tubes are lower than the outer ends thereof.

2. In a heating device, a hollow container including a vertically disposed cylindrical side wall, and a horizontally disposed circular bottom wall, the upper end of said container being open, a quantity of fuel positioned in said container, and a plurality of spaced apart open ended tubes extending inwardly from said side wall, said fuel being wax, there being openings in said side wall registerthe outer ends of said :tubes, said tubes being an ranged in slanting fashion so that the inner ends of the tubes are lower than the outer ends thereo'fi'a support member mounted on said bottom wall, a wick extending upwardlyfrom said support member, and a vertically disposed coil spring surrounding said wick.

3. A'heating device for use with plants, seedlings o the'like, comprising a'ho'llow container including a vertically disposed cylindrical side .wall, and a Thorizontally disposed circular bottom wall, theupper end of said container being open, a quantity of 'fuel positioned in said container, a plurality of spaced apart open ended tubes extendinginwardly from said side wall, the tubesbeingused for supplying airffor supporting combustion after the fuel has burned down below the top of the container, said fuel being wax, there being openings in said side wall registering with theouter ends of said tubes, said tubes being arranged in slanting fashion so that the inner ends of the 1 tubes are lower than :the outer ends thereof whereby the wax will be prevented from running out of the tubes and the tubes also helping to meltthe wax and'causing it to ReferencesCited in thefile ofthis patent UNITED STATES "PATENTS 689,747 -Pursallet-al -Dec.124, 1901 FOREIGN PATENTS 22,364 Great Britain July 26, 1906 322,643

Germany July 3, 1918 

